<template>
  <div class="bg">
    <el-form ref="loginForm" :model="form" :rules="rules" label-width="60px" class="login-box">
      <h3 class="login-title">欢迎登录</h3>
      <el-form-item label="账号" prop="username">
        <el-input type="text" placeholder="请输入账号" v-model="form.username" />
      </el-form-item>
      <el-form-item label="密码" prop="password">
        <el-input type="password" placeholder="请输入密码" v-model="form.password" />
      </el-form-item>
      <div class="loginReg">
        <el-form-item label-width="10px">
          <!-- <el-button>注册</el-button> -->
          <el-button type="primary" v-on:click="onSubmit('loginForm')">登录</el-button>
        </el-form-item>
      </div>
    </el-form>
  </div>
</template>

<script>
  export default {
    name: "Login",
    data() {
      return {
        form: {
          username: '',
          password: ''
        },

        // 表单验证，需要在 el-form-item 元素中增加 prop 属性
        rules: {
          username: [{
            required: true,
            message: '账号不可为空',
            trigger: 'blur'
          }],
          password: [{
            required: true,
            message: '密码不可为空',
            trigger: 'blur'
          }]
        },
      }
    },
    methods: {
      onSubmit(formName) {
        // 为表单绑定验证功能
        this.$refs[formName].validate((valid) => {
          if (valid) {
            // 使用 vue-router 路由到指定页面，该方式称之为编程式导航
            sessionStorage.setItem('isLogin','true');
            this.$router.push("/index");
          } else {
            return false; //阻止提交表单
          }
        });
      }
    }
  }
</script>

<style>
   .bg {
    height: 100vh;
    background-image: url(../../static/img/login_bg_.jpg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-size: cover;
  }

  .login-box {
    /* border: 1px solid #DCDFE6; */
    width: 380px;
    height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 35px 35px 15px 35px;
    border-radius: 5px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    box-shadow: 0 0 25px #909399;
    background-color: rgba(255, 255, 255, 0.6);
  }

  .login-title {
    text-align: center;
    margin: 0 auto 40px auto;
    color: #303133;
  }

  .loginReg {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .el-input__inner {
    background-color: rgba(255, 255, 255, 0.7);
  }
</style>
